Some messages have disappeared, what should I do?

Question

Outlook

I'm using MS Outlook 2013. I haven't had any problems until today. I opened my inbox and didn't see many important emails there. My contacts, calendars, everything else is fine. How to be?

Answer 1

Very little information. And so:
If Outlook is connected to the corporate Exchange - create a case for the administrator to restore the state of the mailbox on a specific date.
If Outlook is connected to a free service:
In other cases, put up with it, get an unforgettable experience, buy software for backups (+ cloud, or at least use free ones if the mail sizes are sane for free services and free software). Something like this.

Answer 2

In Outlook, go to the list of email folders and select Deleted, as an option, these letters may be there, if not, then you need to restore Outlook email using a program of this plan https://outlook.recoverytoolbox.com/ru/ or some other online service.